The model number " MCP4728-E/UN " corresponds to a product from Microchip Technology. It is a Quad 12-bit DAC with EEPROM which is typically used for generating analog voltages from a digital input. The MCP4728 is a device that comes in a QFN-20 package and features a 20-pin interface .
Let's break down the specific pin functions and the package details.
MCP4728-E/UN Pinout and Package Specifications:
Package: QFN-20 (Quad Flat No-lead package, 20 pins) Pin Functions: Each pin has a specific role, which I will describe in detail in the table format. Pin Number Pin Name Pin Type Description 1 VDD Power Power supply pin for the device. Typically 2.7V to 5.5V. 2 VSS Ground Ground pin for the device. 3 VREF Analog Reference voltage input for DAC output scaling. Typically tied to a reference voltage source. 4 SDA Digital Data input/output pin for I2C communication. 5 SCL Digital Clock pin for I2C communication. 6 A0 Digital Address selection pin for I2C communication. 7 A1 Digital Address selection pin for I2C communication. 8 A2 Digital Address selection pin for I2C communication. 9 NC Not Connected No connection. This pin is reserved. 10 VOUT1 Analog Analog output voltage corresponding to the first DAC channel. 11 VOUT2 Analog Analog output voltage corresponding to the second DAC channel. 12 VOUT3 Analog Analog output voltage corresponding to the third DAC channel. 13 VOUT4 Analog Analog output voltage corresponding to the fourth DAC channel. 14 NC Not Connected No connection. 15 NC Not Connected No connection. 16 NC Not Connected No connection. 17 NC Not Connected No connection. 18 NC Not Connected No connection. 19 NC Not Connected No connection. 20 NC Not Connected No connection.Frequently Asked Questions (FAQ) about MCP4728-E/UN:
What is the MCP4728-E/UN used for? The MCP4728-E/UN is a quad-channel 12-bit DAC with EEPROM, used for generating precise analog voltages from digital inputs, controlled via I2C. What is the maximum operating voltage for the MCP4728-E/UN? The MCP4728-E/UN operates within the voltage range of 2.7V to 5.5V. How many output channels does the MCP4728 have? The MCP4728 has four independent DAC channels, each with a 12-bit resolution. Can the MCP4728's output voltage be adjusted? Yes, the output voltage can be adjusted by sending digital values to the DACs via I2C communication. What is the role of the VREF pin in the MCP4728-E/UN? The VREF pin sets the reference voltage for the DAC outputs. It determines the output range of the DAC channels. What are the different pins for I2C communication on the MCP4728? The I2C communication is facilitated through the SDA (data) and SCL (clock) pins. What is the function of the A0, A1, and A2 pins? The A0, A1, and A2 pins are used for I2C address selection, allowing up to eight MCP4728 devices to share the same bus. Does the MCP4728-E/UN require an external clock source? No, the MCP4728 uses the clock from the I2C bus for operation. Can multiple MCP4728 devices be connected on the same I2C bus? Yes, multiple MCP4728 devices can be connected to the same I2C bus, using different address settings on the A0, A1, and A2 pins.What is the resolution of the DACs in the MCP4728-E/UN?
The MCP4728 provides a 12-bit resolution for each DAC channel.Is the MCP4728-E/UN EEPROM programmable?
Yes, the MCP4728 has an integrated EEPROM that allows you to store DAC values for retention across power cycles.What are the possible output voltage ranges of the MCP4728?
The output voltage ranges from 0V to the reference voltage, VREF, which is typically tied to the supply voltage (VDD).How can I interface with the MCP4728-E/UN?
You can interface with the MCP4728 using an I2C bus to control its DAC channels and store settings in EEPROM.What is the power consumption of the MCP4728-E/UN?
The power consumption depends on the supply voltage and the operating conditions, but it typically consumes very little current (in the mA range).Can the MCP4728 be used for audio applications?
Yes, the MCP4728 is suitable for low-frequency audio applications, as its DAC channels can produce smooth analog outputs from digital data.What type of package does the MCP4728-E/UN come in?
The MCP4728-E/UN comes in a 20-pin QFN package, which is compact and suitable for surface-mount applications.How do I reset the MCP4728-E/UN?
The MCP4728 can be reset by toggling the power supply or performing a software reset via the I2C interface.What are the typical applications for the MCP4728?
Typical applications include signal generation, precision control of voltage, and systems that require converting digital signals to analog outputs.What is the internal architecture of the MCP4728 DAC?
The MCP4728 contains a 12-bit DAC core with an EEPROM for storing settings, and it uses I2C for communication and control.How can I store configuration settings in the MCP4728?
Configuration settings can be stored in the internal EEPROM of the MCP4728, and they will persist even after power cycles.This table and FAQ section provide a comprehensive overview of the MCP4728-E/UN's pin functions, usage, and frequently asked questions in detail. Let me know if you need further clarification on any part!
